Ok so this isn't exactly an optic, but thought this would be the best place for it. I wanted some nice adjustable sights for my P226 and after a little gigernet research, these were the best looking ones I could find. Originally I ordered the sights with a white bar in the notch of the rear sight, but despite the mix up I'm happy with what I ended up with. The tritium bars are a good shape contrast with the dot as opposed to 3 dot sights. I wish the dot and bars were a little better aligned so the top of front and rear sights would be flush. As is, the bars and dots line up with the front sight a smidgn' high.

Comp M4 holds AA batteries for ease of compatibility and epic run times. The lil micro buddy is great for shotguns and pistols. A great compromise for size and viewspace.
<www.aimpoint.com>

Got to look through some of these and was super impressed in their handsized thermal sight. They also had a dot sight with auto aligned visible laser.
<www.insightlights.com>